Introduction Hydroxypropyl chitosan, the English name is Hydroxypropyl Deacetylated Chitin (HPDC), which is a derivative obtained from chitosan (Chitin) through deacetylation reaction. It is a natural product that can be extracted from the shells of crustaceans such as shrimp, crab, and lobster. Hydroxypropyl chitosan has excellent biocompatibility and biodegradability, so it is widely used in medicine, food, cosmetics and other fields. In the field of medicine, hydroxypropyl chitosan is used as a drug carrier, tissue repair material, antibacterial drug, etc. In the food field, it can be used as a preservative, thickener, emulsifier, etc. In the field of cosmetics, hydroxypropyl chitosan is widely used in skin care products, cosmetics, oral care products, etc. |